Floor drain and automatic flood protector



April 22, 1930.

J. OLESZKO FLOOR DRAIN AND AUTOMATIC FLOOD PROTECTOR Fild May 15, 1929 2 Sheets-Sheet 1 lil'liiiiij I II- INVENT R April 22, 1930. J. OLESZKO FLOOR DRAIN AND AUTOMATIC FLOOD PROTECTOR Filed May 15, 1929 Sheets-Sheet 2 vwewtez Patented Apr. 22, 1930 UNITED STATES JOHN vOLESZIKO, OF DETROIT, MICHIGAN FLOOR DRAIN AND AUTOMATIC FLOOD LPROTECTOR Application filed May 13,

This invention relates to a floor drain and automatic flood protector, and it is the principal object of my invention to provide a device of this character in the form of a checkvalve, the floating body of which will close effectively the drainage opening of a sewer trap against the detrimental influence of the sewer water backin into a cellar.

Another object o my invention is the provision of a device of this type equipped with means for seating a ball allowing its floating to close the mouth of the sewer opening as soon as water backing from the sewer tries to enter the cellar.

A further object of my invention is the provision of a device of this character equipped with means to guide the ball back onto its seat after each operation. A still further object of my invention is the provision of a check valve protecting cellars against being flooded by backing sewer water equipped with means for protecting the sewer opening against the entrance of impurities, refuse or the like.

These and other objects of my invention will become more fully known as the description thereof proceeds, and will then be specifically defined in the appended claim.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a sectional front elevation of a deviceconstructed according to my invention, the section being taken on line 11 of Figure 2.

Fig. 2 is a top plan view of the device after the removal of the cover.

Fig. 3 is a longitudinal section through the device on line 3-3 of Figure 1.

Fig. 4 is a detail plan view of the cover plate.

As illustrated, my floor drain and automatic flood protector comprises a hollow body 10 adapted to be placed upon or connected with a sewer drainage pipe or the like, and having substantially the form of a frustated cone having a laterally extending ball socket 11 formed therewith normally holdin a hollow ball 12 of rubber or similar suitable material.

Integrally made with the upper end of the 1929. Serial No. 362,732. g

body 10 is a seat 13 presenting a bowl shaped member or element 14 having a seat or flange 15 formed with its inneredge for seating a c'over'plate 16 perforated by a plurality of circularly arranged openings 17 surrounding its center while a plurality of radially extending elongated slots 18 having narrow pointed inner ends and wider rounded outer ends is grouped about the inner circle of openings 17. 1

The seat 18 has formed therewith an inner groove in which rest the outer ends of cross wise arranged bars 19 forming a spider 20.

Inclined bars 21 are arranged within body 10 crossing the same from a higher point 22 to a lower point 23 at the union between ball socket 11 and body 10. V

The device operates as follows:

When arranged in a cellar or the like, with the top cover 16 flush with the cellar floor and the body 10 in connection with a sewer drainage pipe, a backing of the sewer water will cause the accumulation of water within body 10, floating float ball 12 which will leave its seat 11 and acting as a valve body be pressed against seat 13 closing the opening tightly and preventing water from entering the cellar.

The spider 20 will prevent the ball from rising too high, while the top plate 16 will prevent refuse from entering the body 10 and bars 21 will act as guiding means for the ball to return the same onto its seat, after the receding sewer water has ceased to press against the same from below.

It will be understood that I have disclosed the preferred form of my device only as one example of the many possibilities to practically construct the same, and that I may make changes within the scope of the appended claim without departing from my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

In a cellar drainage device and sewer closure, a body having substantially the shape of a cone frustum, and adapted to be connected with a sewer drainage pipe, a laterally extending ball socket formed with said body, a ball float in said socket, a seat inte-,

grally formed with the upper end of said body having an inner groove a bowl, the bottom of which is formed by said seat, an upper flange on said bowl having an inner 5 shoulder, a plate resting on said shoulder and having a plurality of round openings arranged ina circle, and a plurality of radially extending elongated slots having narrow pointed inner ends and wider rounded outer w ends, and grouped about said circle of holes,

for allowing the draining "of the cellar and retaining refuse, a spider formed by crosswise arranged bars resting withtheir outer ends in the groove of said seat,.for limiting 15 the upward movement of the ball when floated byi the'sewer water risingein socket "and body; and a plurality of inclined-bars insaid bodyo belowsaid socket forguidingthe ball float back into said socket upon recession-of 20 thesewer water.-

Signed zit-Detroit, in the county of Wayne and State. oi Michigan, this 6th day of May, 

